Sugishita Y, Matsuda M, Iida K, Ito I, Yamaguchi T, Koseki S
Acta Cardiol. 1983;38(5):455-71.
To investigate exertional changes in hypertrophic cardiomyopathy (HCM), 42 patients with HCM were studied by echocardiography and ECG at a supine ergometer exercise. In 12 cases with left ventricular (LV) outflow tract obstruction at rest (Group I), systolic anterior movement (SAM) of mitral valve was intensified during exercise; and among 30 cases without obstruction at rest (Group II), in 6 cases (Group IIA) SAM appeared during exercise. SAM might be further intensified 1 minute after exercise. Inverted T-wave was seen at rest especially in Group IIB (no SAM both at rest and during exercise), and tended to become less deep during exercise with an increase of LV wall motion. In conclusion, in HCM, LV outflow tract obstruction may be produced or intensified during exercise. Inverted T-wave in HCM may become less deep during exercise, with accelerated LV function.
为研究肥厚型心肌病（HCM）运动时的变化，对42例HCM患者进行了仰卧位测力计运动时的超声心动图和心电图检查。12例静息时存在左心室（LV）流出道梗阻的患者（I组），运动时二尖瓣收缩期前向运动（SAM）增强；30例静息时无梗阻的患者（II组）中，6例（IIA组）运动时出现SAM。运动后1分钟SAM可能会进一步增强。静息时可见T波倒置，尤其在IIB组（静息和运动时均无SAM），运动时随着左心室壁运动增加，T波倒置程度趋于减轻。总之，在HCM中，运动时可能会产生或加重LV流出道梗阻。HCM中的T波倒置在运动时可能会减轻，同时左心室功能加速。
